Climate and monthly weather forecastCascade, ID
Climate and monthly weather forecast
The climate of Cascade
In accordance with the Köppen climate classification, Cascade, Idaho, falls under the Dsb zone, denoting a humid continental climate with dry warm summers. This geographical area is characterized by considerable temperature flux throughout the year, with the coldest month dipping to an average low of 14.7°F (-9.6°C) and the hottest month reaching a high of 79.2°F (26.2°C).Annual weather changes bring about noteworthy variances in the different meteorological parameters. Rainfall numbers see their peak at 3.31" (84mm) in March and descend to their low point of 0.31" (8mm) in July. Helping to form the snow layer, the highest snowfall usually happens in January and December with 23.07" (586mm) and 21.1" (536mm) respectively. Notably, this locality experiences snow-free months from June to September.
In contrast to snow, sunshine in Cascade takes up the majority of the yearly timetable, with an entire yearly sun coverage averaging between 4.2 hours in January and a maximum of 12 hours in July. Humidity levels rise highest in January and February reaching 91%, then decline to their minimum of 42% during August.
The best time to visit Cascade
For travelers wishing to make the most of their trip to Cascade, Idaho, the summer months of June, July, and August promise the most favorable conditions. At this point, average high temperatures range from 66.2°F (19°C) to 79.2°F (26.2°C), allowing for comfortable outdoor activities. Additionally, it's noteworthy that these months provide the most daylight, with an average of 15 hours per day coupled with a predominant exposure to sunshine.The low precipitation during these months, with rainfall not exceeding 1.69" (43mm) and zero snowfall, ensures the weather remains largely clear and pleasant. Also, with a lower relative humidity level, ranging from 42% to 62%, visitors can expect a less humid climate during this period, adding to their comfort.
The worst time to visit Cascade
The month of December may not be the best time to plan a visit. Temperatures during this time tumble to a stifling low average of 15.1°F (-9.4°C) with the high sitting at a frosty 28°F (-2.2°C). Furthermore, the significant amount of 21.1" (536mm) of snowfall, along with 2.91" (74mm) of rainfall, can make outdoor activities potentially hazardous.Spring weather in Cascade
Spring, spanning from March to May, brings a gradual increase in temperatures. March's highs and lows range from 37.6°F (3.1°C) to 22.8°F (-5.1°C), transitioning to 57.7°F (14.3°C) and 35.6°F (2°C) in May. Rainfall tends to increase during this period, with March experiencing precipitation measures up to 3.31" (84mm) but declining to 1.93" (49mm) by May. Snowfall decreases significantly, with 18.5" (470mm) recorded at the start of spring and dwindling to 1.42" (36mm) by the end of the season.Summer weather in Cascade
Summer in Cascade is defined by warm temperatures, long days, and limited rainfall. From June to August, temperature highs fluctuate between 66.2°F (19°C) and 79.2°F (26.2°C), while the lows remain between 42.1°F (5.6°C) and 50°F (10°C). Rainfall during these months averages 1.69" (43mm), falling to as low as 0.31" (8mm) in July. The presence of snow is non-existent during this period.Autumn weather in Cascade
Cascade experiences a noticeable drop in temperatures during autumn. In September, high temperatures remain around 69.1°F (20.6°C), but by November, they drop to a chilly 37.9°F (3.3°C). Lows also decrease, ranging from 43.3°F (6.3°C) in September to 23.2°F (-4.9°C) in November. While no snowfall is recorded in September, November reports an average of 9.33" (237mm).Winter weather in Cascade
Winter arrives in Cascade with dramatic falls in temperature and increased snowfall. From December to February, temperature highs remain between 28°F (-2.2°C) to 30.7°F (-0.7°C), while lows dip from 15.1°F (-9.4°C) to 17.2°F (-8.2°C). The season sees a significant rise in snowfall, with accumulations reaching their peak at 23.07" (586mm) in January. Concurrently, rainfall enhances the dampness with an average rise of up to 2.91" (74mm) in December.Weather in January
Cascade, Idaho sees the cold embrace of a Northern US winter in January. Snowfall is common, creating a serene, white-blanketed landscape and contributing to the cascading beauty of the city's name. January is among the coldest months with average temperatures that range from 14.7°F (-9.6°C) to 29.5°F (-1.4°C). Weather in January »Weather in February
As February unfolds, winter continues its reign in Cascade with heavily overcast skies and snow-white landscapes. The temperatures rise marginally but remain frosty, with the average low and high hovering between 17.2°F (-8.2°C) and 30.7°F (-0.7°C). Weather in February »Weather in March
March signals a transition towards spring in Cascade, although wintry conditions persist. An increase in daylight hours corresponds to a subtle rise in temperatures and a reduction in snowfall. This month's temperatures oscillate from 22.8°F (-5.1°C) to 37.6°F (3.1°C) a positive indication of the upcoming spring. Weather in March »Weather in April
Come April, Cascade experiences a discernible departure from the winter. Snowfall tapers off significantly, clocking in less than half the precipitation compared to the previous month. Temperatures improve, shifting from 27.7°F (-2.4°C) to 46.2°F (7.9°C), paving the way for frequent rain as the primary form of precipitation. Weather in April »Weather in May
May marks the onset of warmer days in Cascade, with comfortable temperatures and more abundant sunlight. The shift from 35.6°F (2°C) to 57.7°F (14.3°C) testifies to noticeable warmth compared to preceding months. The city reverberates with vibrancy, incorporating prolonged daylight hours, occasional rainfall, and a significant increase in sunshine. Weather in May »Weather in June
June brings the promise of the approaching summer, characterized by mild temperatures and increased sunlight. Cascade experiences a relative decrease in humidity and rainfall as the city basks in nearly 10.9 hours of sunshine on average. Weather in June »Weather in July
Cascade, Idaho, experiences the heat of summer in July. The temperatures reach their apex, ranging from 49.6°F (9.8°C) to 79.2°F (26.2°C), marking the year’s warmest month. Paired with the longest sunlight hours and least amount of rainfall, July truly embodies the essence of summer. Weather in July »Weather in August
August in Cascade offers an extension of summer, with temperatures marginally cooler than July's peaks. As Cascade registers temperatures from 50°F (10°C) to 78.4°F (25.8°C), the weather remains agreeably warm for most parts of the day. Weather in August »Weather in September
September ushers in autumn in Cascade with a significant drop in temperature, ranging from 43.3°F (6.3°C) to 69.1°F (20.6°C). The onset of the fall season is evident as the days become shorter and the windows of sunshine decrease. Weather in September »Weather in October
October witnesses the full swing of autumn in Cascade, Idaho. Continental weather influences bring about a further decrease in temperature, and regular rainfall sets the stage for a humid month. The variations in weather conditions are a telltale sign of the imminent winter. Weather in October »Weather in November
November announces the initial signs of the approaching winter in Cascade. As temperatures drop from 23.2°F (-4.9°C) to 37.9°F (3.3°C), a noticeable chill permeates the air. Snowfall begins to dust the city, signaling the imminent arrival of winter. Weather in November »Weather in December
December ends the year on a cold note in Cascade, with temperatures plunging to a low of 15.1°F (-9.4°C) from 28°F (-2.2°C). As winter takes full control, snowfall is abundant, making December a month of winter wonderland landscapes. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Cascade, ID
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (28°F).
The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure
Cascade, ID
- Average pressure in January:
30.24"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
30"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.21"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Cascade, ID
- Average wind speed in January:
4.2mph - Average wind speed in February:
4.8mph - Average wind speed in March:
5.3mph - Average wind speed in April:
5.3mph - Average wind speed in May:
5.1mph - Average wind speed in June:
4.9mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5.1mph - Average wind speed in September:
4.9mph - Average wind speed in October:
4.7mph - Average wind speed in November:
4.7mph - Average wind speed in December:
4.5mph
The windiest months (with the highest average wind speed) are March and April (5.3mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).
Average humidity
Cascade, ID
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (42%).
Average rainfall
Cascade, ID
- Average rainfall in January:
2.83" - Average rainfall in February:
2.83" - Average rainfall in March:
3.31" - Average rainfall in April:
2.2" - Average rainfall in May:
1.93" - Average rainfall in June:
1.69"
- Average rainfall in July:
0.31" - Average rainfall in August:
0.47" - Average rainfall in September:
0.79" - Average rainfall in October:
1.61" - Average rainfall in November:
1.73" - Average rainfall in December:
2.91"
The wettest month (with the highest rainfall) is March (3.31").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days
Cascade, ID
- Average rainfall days in January:
4.1 days - Average rainfall days in February:
4.8 days - Average rainfall days in March:
10.4 days - Average rainfall days in April:
12.6 days - Average rainfall days in May:
14.4 days - Average rainfall days in June:
12.3 days
- Average rainfall days in July:
5.2 days - Average rainfall days in August:
4.9 days - Average rainfall days in September:
7.7 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
7 days - Average rainfall days in December:
4.6 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (4.1 days).
Average snowfall
Cascade, ID
- Average snowfall in January:
23.07" - Average snowfall in February:
21.85" - Average snowfall in March:
18.5" - Average snowfall in April:
5.16" - Average snowfall in May:
1.42" - Average snowfall in June:
1.26"
The month with the highest snowfall is January (23.07").
The months with the least snowfall are July and August (0").
Average snowfall days
Cascade, ID
- Average snowfall days in January:
16.2 days - Average snowfall days in February:
15.4 days - Average snowfall days in March:
17 days - Average snowfall days in April:
9.9 days - Average snowfall days in May:
2.8 days - Average snowfall days in June:
0.7 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.5 days - Average snowfall days in October:
3.5 days - Average snowfall days in November:
11.5 days - Average snowfall days in December:
16.3 days
The month with the highest number of snowfall days is March (17 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Cascade, ID
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 30min
- Average daylight in July:
15h and 6min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 36min - Average daylight in December:
8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
4h and 12min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 6min - Average sunshine in April:
8h and 30min - Average sunshine in May:
10h and 12min - Average sunshine in June:
10h and 54min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 24min - Average sunshine in September:
9h and 18min - Average sunshine in October:
7h and 24min - Average sunshine in November:
5h and 42min - Average sunshine in December:
4h and 30min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days
Cascade, ID
- Average sunshine days in January:
14.9 days - Average sunshine days in February:
11.9 days - Average sunshine days in March:
10.1 days - Average sunshine days in April:
10.9 days - Average sunshine days in May:
13.3 days - Average sunshine days in June:
15.2 days
- Average sunshine days in July:
23.8 days - Average sunshine days in August:
22.3 days - Average sunshine days in September:
20.4 days - Average sunshine days in October:
17.3 days - Average sunshine days in November:
14.4 days - Average sunshine days in December:
13.6 days
The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is March (10.1 days).
Average UV index
Cascade, ID
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover
Cascade, ID
The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility
Cascade, ID
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).





